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Terry

Member Since: 20 Nov 2017
Location: wales
Posts: 19

TD5 DIAGNOSTICS

Can anyone offer any help on this.
Hawkeye fault codes
3204 topside switch failed post injection.
3189 topside switch logged as failed post injection.
3213, 14,15,16 & 17 injectors 1 thro to 5 open circuit logged.
3071 glow plug relay drive open load logged.
3103 glow plug relay drive open load active.
I can clear codes but they come back.
This is a new ECU from ECU testing only two weeks ago !
The symptoms are the car was ticking over on the drive then turned off, The following morning it would not start and the glow plug relay chatters like hell with the light on the dashboard on too but only for a few seconds.It will turn over but not fire. with the above faults being displayed.
This is only a few weeks since replacing the ecu AND since,
injector harness inside cam cover.
New loom back to ECU.
crank shaft sensor.
Fuel filter,
Fuel regulator AND gauze filter/o ring,
Fuel pump,
glow plug relay.
starter relay.
cylinder head removed and injector o rings replaced,
cylinder head replaced and torqued down as per manual.
MAS sensor checked ok,
MAP sensor checked ok.
fuel temp sensor ok,
coolant temp ok,
fuel pressure 4 bar ok.
I THINK THE ECU is stuffed again but what could be the cause ???
any help please as dont know where else to go.

29th Dec 2017 9:15pm

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

OK that sounds heart breaking, but before you send the ECU back check all the vehicle earths to chassis and put a dedicated earth in from the ECU to the battery. It might just be as simple as that...

Fingers crossed mate! Where in Welsh Wales are you?

29th Dec 2017 10:17pm

Clive

Member Since: 21 Mar 2014
Location: Littleborough
Posts: 467

2004 Defender 90 Td5 X-Tech LE Zambezi Silver

Have you had water ingress into the seatbox where the ECU is?

I had a very similar thing with my previous Td5, not the fault codes, (I didn't have a code reader at the time,) but the relay chattering thing is very familiar.

In my case it was electrical leakage due to moisture between adjecant connectors in the Header K109 that resides next to the engine ECU, the solution was to cut the offending wires out of the header and join them externally, (soldered together then a layer of heatshrink sleeving over the top.)

29th Dec 2017 10:33pm

Terry

Member Since: 20 Nov 2017
Location: wales
Posts: 19

Thanks for your replies guys,
some things i didn't mention in the original post.
I have also earthed ecu straight to battery.
opened cleaned and checked both header joints in the seat box and the header behind the coolant expansion bottle along with the adjacent earth.
checked with meter the cable (yellow/black) for the glow plugs both with them plugged in and then unplugged cable is ok.
and i have now replaced glow plugs as the original ones "all 4" were open circuit !!! new ones read 2.5 ohms.

29th Dec 2017 11:04pm

Terry

Member Since: 20 Nov 2017
Location: wales
Posts: 19

by the way no water ingress as was only ticking over on the drive when last running then morning after all this again !
by the way im in swansea.

29th Dec 2017 11:07pm

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